NC0026921_Fact Sheet_20240917

DENR/DWR
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit: NCO026921
2024 Renewal
This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets.
Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc.) that can be
administratively renewed with minor changes but can include facilities with more complex issues (Special
Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns).
Facility and Stream Information
Applicant/ Facility Name:
Town of Parkton / Parkton WWTP
Applicant Address:
PO Box 55; Parkton, NC 28371
Facility Address:
240 Sewer Plant Road; Parkton, NC 28371
Facility Class/Permit Status:
Grade II Biological WPCS / Renewal
Contact Emails:
Doris Underwood (mayor): [e-mail]
Tim L de: tim st aulsnc. ov
Permitted Flow [as built]
0.20 MGD
Type of Waste
100% Domestic
Receiving Stream
Dunns Marsh
Stream Class ID
C; SW 14-22-1-3-2
River Basin
Lumber
Subbasin
03-07-53
HUC
030402030601
USGS Too
Hope Mills / H23NW
7Q10 Sum Win cfs
0 0.38
1 30Q2 cfs
0.48
Avg. Stream Flow cfs
6.18
IWC % s/w [as -built]
100%
County
Robeson
Regional Office
FRO
Basic Information for
Expedited Permit Renewal
Permit Writer / Date
Bradley Bennett / July 12, 2023
Does permit need daily max NH3 limits?
Yes - Already in permit but limits need to change
Does permit need TRC limits/language?
Yes - Already in permit
Does permit have toxicity testing?
Yes - Already in permit
Does permit have Special Conditions?
Yes -Chronic Tox; Sludge Monitoring; Mercury
Monitoring
Does permit have instream monitoring?
No
Stream on 303(d) List? For w/parameter?
No, except statewide mercury
Any compliance concerns?
See discussion below
Any modifications since lastpermit?
None noted in the application
New expiration date:
October 31, 2029
FACILITY OVERVIEW:
This facility is 100% domestic wastewater, supports no industry and has no pretreatment program. The
existing activated -sludge treatment system consists of:
• Mechanical bar screen, grit removal, influent splitter box
• Two oxidation ditches (operated as parallel treatment trains)
• Two clarifiers
• Two sludge recirculation and waste pumping stations
• Parshall flume and flow meter
• Chlorination / dechloringation
• Step-down post -aeration
• Aerated sludge digester
• Sludge drying beds

Wastewater Treatment Process (from previous documents)
The Parkton WWTP is an activated sludge system using oxidation ditches for aeration and conventional
clarifiers for sedimentation. Each clarifier is equipped with a sludge pumping station which can be used to
recycle the activated sludge to the aeration process or waste the sludge to the aerobic digester. Effluent from
the activated sludge process is disinfected in the chlorine contact basin and then dechlorinated. After
disinfection, post aeration is accomplished by cascade steps to insure maintenance of minimum dissolved
oxygen levels.
Collection System
The Town also holds Collection System permit WQCS00265.
APPLICATION
No modifications were noted or proposed in the current application (February 8, 2024). However, the most
recent inspection notes that a new generator capable of running the whole facility was installed in early 2024.
The treatment system is owned and operated by the Town of Parkton. The annual average daily flow (from the
application) is indicated as 0.117 MGD over the last two years falling to 0.107 MGD at the time of the renewal
application. The facility is currently operating below its permitted capacity of 0.20 MGD. Some maximum daily
flows are noted as well above the 0.20 MGD permitted flow, including a max of 1.29 MGD. (see flow discussion
under Review of Permit Limits).
The application notes the facility average daily I/I at 16,000 GPD and indicates efforts to minimize I/I include
ongoing smoke testing and clean out cap inspection. The application notes the system as having secondary
treatment that is designed to achieve 90% BOD and TSS removal. The application notes contract services with
Tim Lyde (ORC) for operation and maintenance. The facility notes chlorination and dechlorination for
disinfection and indicates that the system has no SIU's.
INSPECTION
The most recent inspections occurred on May 29, 2024. Regional staff noted the new backup generator as
indicated above installed in early 2024. The report noted housekeeping issues that needed to be addressed
including: weeds and grass on the side slopes of the oxidation ditches, improper dumpster placement for
collection of waste at the grit chamber and the effluent composite sampler storage unit was not cooling
properly. In the inspection the ORC mentioned the possible replacement of weirs in the clarifiers. The regional
office staff recommended stainless steel weirs. This potential replacement was not mentioned in the renewal
application.
The Town's Collection System (WQCS00265) was last inspected (February 16, 2023) and resulted in an NOV as
certain ordinances (Sewer and FOG) and documentation was lacking for maintenance and cleaning (last records
from 2011). The collection system has had a few incidents over the permit cycle including one SSO with an NOV
and an NOV for construction of a sewer system without a permit.
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 2

MONITORING DATA REVIEW:
Parameter Units
Min
Max
Permit Limit
Comments
Flow MGD
0.002
1.39
0.12
0.20 MA
7 MA exceedances
BOD (mg/L) Summer
1.00
45.00
8.37
15 MA/ 22.5 WA
1 MA and 7 WA exceedances; Avg
removal < 85%
130D m L Winter
2.00
46.00
8.25
24 MA 36 WA
2 WA exceedances; Avg removal < 85%
TSS m L
1.25
43.50
9.97
30 MA 45 WA
Avg removal < 85%
NH3-N m L Summer
0.10
23.20
3.0
5 MA 15 WA
6 MA and 4 WA exceedances
NH3-N m L Winter
0.10
20.00
1.60
9 MA 27 WA
C - Effluent
0.00
29.00
19.20
-
-Temp
DO m L - Effluent
5.10
10.50
7.50
>_ 5 DA
Fecal # ml - Effluent
0.50
4,840.00
N/A
200 MA /400 WA
5 WA exceedances
TRC (µg/L)
2.00
50.00
27.13
17 DM
378 values > 17 but none > SO; Avg
value at 27
Total Nitrogen m L
1.80
13.00
7.20
Total Phosphorus m L
0.10
23.20
3.00
pH (su)
6.00
24.00
N/A
>_6 and <9
One high number that seems out of
range.
Total Mercury n L
0.25
1 6.10
1 1.84
MA - Monthly Average DM - Daily Max QA - Quarterly Average DA - Daily Average Summer -April through Oct Winter -Nov through March
Note: DMR values reported as "Less Than <" were included in the data analysis at 1/2 the less than value. Minimum values shown may also be 1/2 reported value.
The data reviewed for the renewal is from February 2020 through May 2024.
REVIEW OF PERMIT LIMITS:
Flow - Over the permit cycle the facility has shown average flow of around 0.12 MGD. There were seven (7)
monthly average exceedances over the permit term that lead to NOV's and enforcement actions. Flow over the
permit term has been highly variable which could be attributed to the I/1 volumes noted in the application. In
2020 the average flow was near 80% of the design flow and a Sewer Moratorium letter was issued in May of
2021, but flow decreased over the next few years. In 2024 through May the flow is again averaging over 80% of
the design flow at 0.17 MGD.
BOD I TSS- The facility had ten (10) BOD limit violations over the permit term with eight (8) of those occurring
during the summer months. Average monthly BOD removal has been around 72% but no violations have been
noted for the 85% requirement in BIMS. For TSS the facility didn't have any limit violations, but the treatment
system has shown average monthly TSS removal of only 72%.
Fecal - Data results for Fecal Coliform showed five (5) weekly average limit exceedances leading to NOV'S and
enforcement actions.
Dissolved Oxygen - Data for dissolved oxygen do not appear to show any potential impacts from the discharge
as no values have been below 5 mg/L.
Ammonia (NH3-N) - The facility had ten (10) limit violations over the permit cycle that resulted in NOVs and
enforcement actions. All the violations were in the summer months. The waste load allocation spreadsheet
shows numbers that are more stringent than the limits in the permit. Review of the files shows that back in
1990 this issue came up in the WLA development and the permittee was given the option of maintaining the
existing NH3-N limits and conducting whole effluent toxicity tests. That is how the permit has been structured
since 1990.
The use of action levels or biology in place of an actual chemical numeric limit can no longer be used in our
permits (see 2016 Implementation of Ammonia Criteria). This means that the summer and winter monthly
average limits for NH3-N from the WLA spreadsheet should apply in the permit. The spreadsheet shows
summer and winter monthly average limits of 1 and 1.8 mg/L, but for small domestic dischargers Division
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 - July 12, 2024
Page 3

policy sets the numbers no lower than 2 and 4 mg/L based on Best Available Technology standards. The data
from the last permit cycle shows that if these limits had been in place limit violations would have increased
from ten (10) to thirty-three (33). The permit will include a two year compliance schedule for the town to meet
the new limits. The new limits will be:
New Ammonia (NH3-N) Limits
Season
Monthly Average
Weekly Average
m IL
m IL
Summer
2
6
Winter
4
12
The facility has also had toxicity issues (failed 3 of the last seven tests), so moving to the lower limits will not
remove the facility's required WET testing.
Total Residual Chlorine (TRCI - The permittee had three hundred seventy-eight (378) values over the permit
limit of 17 µg/L but none exceeded the 50 compliance threshold. There were compliance issues associated with
frequency violations for TRC reporting. Avg TRC value was 27 µg/L.
Nutrients
Total Nitrogen and Total Phosphorous numbers do not appear to show any potential problems.
Whole Effluent Toxicity
The facility has quarterly pass/fail WET monitoring. The facility has received two (2) NOVs for failure to report
their WET results. The facility has also failed on three (3) of the last seven (7) testing events. There is no
indication of potential causes for the toxicity or indication of efforts to determine the potential causes.
Mercury
The facility is required to monitor once during the permit term for mercury (Hg). The facility actually reported
four (4) monitoring events for Hg. Three (3) of the sample results were at or less than 0.5 ng/L but one (1)
value was at 6.1 ng/L. These numbers do not seem to indicate any potential water quality issues with Hg but
given the continued minor detection, the once per term requirement will be maintained in the permit.
COMPLIANCE:
The Town has had twenty-three (23) enforcement cases for violations occurring during the permit term for this
facility. These cases have assessed $ 20,220.75 in penalties and $ 3,107.96 in enforcement costs. Two (2) cases
from 2024 have not been finalized at the time of the renewal totaling $ 2,792.26 in penalty and enforcement.
Enforcement cases have been for limit violations (10) NOV's for BOD, fecal, flow, ammonia and pH and for
frequency violations for flow, TN, TP, DO and temperature. The facility has also had an additional five (5) NOD's
and ten (10) NOV's.
The Town also received NOV's for it's collection system after the 2023 inspection for sewer and FOG ordinances
not being accessible, lack of maintenance and cleaning logs and for sewer installation without a permit.
FACILITY AND OUTFALL LOCATIONS
The locations currently in BIMS should be verified. It appears that the facility lat/long in BIMS may actually be
the outfall location. The lat/long given for the outfall seems to be between Dunns Marsh and the Facility.
Looking at old staff reports and current maps the permit writer feels that the BIMS locations should be
corrected as follows. The region office was contacted and verified the coordinates.
Current BIMS Locations
Corrected Locations
Point
Latitude
Longitude
Latitude
Longitude
Facility
340 52' 55"
780 59' 59"
340 53' 01"
780 59' S1"
Outfall
340 53' 02"
780 59' 59"
340 52' 55"
780 59' 59"
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 4

FILE HISTORY REVIEW SUMMARY (HARD COPY AND LASERFICHE)
BIMS shows an original issue date as January 13, 1981, but there are records indicating the permit was in
place before this time, back into the mid 1970's.
January 23, 1976 - Staff Report and Draft Permit Documents - This information indicates that the Town was
working to replace an existing permitted treatment facility that would discharge at the same Dunn's Marsh
location. The proposed system appears to be the duel oxidation ditch/clarifier system that is in place today.
The old system was not able to meet the effluent limits required to protect water quality.
Existing System Effluent Limits
Flow
BOD5
DO
TSS
pH
Temp
Monitor for
MGD
m L
m L
m L
std units
0.10
100/150
5
100/150
6-9
No increase
Settleable matter,
over 5°
COD, NH3-N, Total
Residue
New System Effluent Limits
Flow
BOD5
DO
TSS
pH
Temp
NH3-N
Fecal
MGD
m L
m L
m L
std units
m L
# 100 ml
0.10
29/43.5
5
30/45
6-9
No increase
15/22.5
200/400
over 5°
Monitoring for: settleable matter, COD, total residue, TRC. Compliance with the new effluent limits required
by October 1978.
April 8, 1980 - Staff Report and Draft Permit - Staff report indicates the facility is operating in compliance
with the permit with BOD removal of 92%, TSS of 68% and NH3-N of 91%. The staff report indicates the
previous permit was issued June 15, 1976 (no copy in the files) and also indicates the facility does have I/1
problems that are being addressed through a 201 Facilities Planning Process. Draft permit effluent limits
were very similar to the previous limits. Discharge to Dunn's Marsh, Class C waters. 7Q10 flows given as 0
and 0.4
Flow
BOD5
DO
TSS
pH
Temp
NH3-N
Fecal
MGD
m L
m L
m L
std units
m L
# 100 ml
0.10
27/40.5
5
30/45
6-9
No increase
15/22.5
1,000/2,000
over 5°
• November 18, 1985 -Waste Load Allocation (WLA) -The WLA notes Dunn's Marsh and class C; Sw and
indicates 7Q10 numbers of 0(s) and 0.4(w) with avg flow of 6.2 cfs. The WLA is run for 0.1 MGD and gives
limits as:
Flow
BODS
DO
TSS
pH
Temp
NH3-N
Fecal
MGD
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
units
0.10
10(s)/24(w)
6
30(s)/30(w)
6-9
No increase
5(s)/9(w)
1,000/1,000
over 50
1
1 s w
• April 1, 1986 - Permit Issuance - Only a cover page for the issued permit is available along with the Staff
Report and other draft permit documents. The staff report notes the permittee's request to expand to a flow
of 0.2 MGD and indicates that this the existing facility can meet the 0.2 MGD limits with the existing plant
with no modifications. The report does note that the 0.2 limits are substantially reduced but indicates the
plant should be able to meet the limits. The limits in the draft permit are:
Flow
BOD5
DO
TSS
pH
Temp
NH3-N
Fecal
MGD
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
units
0.10 (s)
10/15
6
30/45
6-9
Monitor
5/7.5
1,000/2,000
0.10 w
24 36
6
30/45
6-9
9 13.5
1,000/2,000
0.20 (s)
10/15
6
30/45
6-9
Monitor
5/7.5
1,000/2,000
0.20 w
24 36
6
30/45
6-9
9 13.5
1,000/2,000
Monitoring was also required for TRC, TN and TP
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 5

November 24, 1986 - WLA - This WLA was done after a number of discussions between the Regional Office
and Central Office Technical Support Branch including a site visit and re -runs of the model. Some issues
seem to originate from the models potential limitations in the swampy waters. The Region questioned the
lower limits and the facility's ability to meet the limits without modification. Eventually the 1986 WLA was
approved going back to older less stringent limits with the desire to do an intensive study of the area uring
the permit cycle.
The monthly average limits in the WLA were set at:
Flow
BOD5
DO
TSS
pH
NH3-N
Fecal
MGD
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
units
0.10
27
5
30
6-9
15
1,000
0.20
15
1 5
1 30
6-9
5
1 1,000
• April 29, 1987 -Permit Modification -This modification was in response to the change in the WLA noted
above and the permittee and regional office requests for the modification. The final permit was issued for a
flow of 0.20 MGD with no phased flow. The effluent limits were set at:
Flow
BOD5
DO
TSS
pH
NH3-N
Fecal
(MGD)
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
0.20
units
Summer
15 22.5
5
30/45
6-9
5 7.5
1,000 2,000
Winter
24 36
1 6
1 30/45
1 6-9
9 13.5
1,000 2,000
• November 27, 1990 - WLA -Monthly average limits from this WLA were:
Flow
BOD5
DO
TSS
pH
NH3-N
Fecal
(MGD)
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
0.20
units
Summer
15
5
30
6-9
5
200
Winter
24
5
1 30
1 6-9
9
1 200
Included instream monitoring for DO, temp, fecal and conductivity. The document noted that NH3-N should
be 1 and 1.8 but the facility chose to maintain the existing limits and add toxicity testing (monthly for first
year then quarterly P/F.
• May 1, 1991- Permit Issuance - The permit contained the following effluent conditions with the major
chan a being the limits for fecal dropping to 200/400:
Flow
BOD5
DO
TSS
pH
NH3-N
Fecal
(MGD)
(mg/L)
(mg/L)
(mg/L)
(std
(mg/L)
(#/100 ml)
0.20
units
Summer
15/22.5
5
30/45
6-9
5/7.5
200/400
Winter
1 24/36
5
1 30/45
1 6-9
9/13.5
1 200/400
Monitoring was also required at the effluent for: TRC, temp, TN, TP. Monitoring instream as required for:
DO, temp, fecal and conductivity.
• September 18,1991- Modification Request - Parkton requested a modification to change the toxicity
testing from monthly to quarterly based on their six months of testing. The Regional Office agreed with this
request in an October 1991 memo.
• September 2, 1994 - WLA - This document includes a summary of previous WLA documents. The WLA
again notes the NH3-N limits should be 2 and 4 (for small 100% domestic) but will maintain the higher
limits because they have consistently passed the tox tests. All limits are the same as from the previous
permit.
• December 6, 1994 - Permit Renewal - No changes from the previous permit except removal of the initial
monthly toxicity testing.
• December 21, 1994 - Memo from Aquatic Toxicology noting a reference discrepancy int eh recently issued
permit.
• March 27, 1995 - Permit Modification - Issued to correct the reference discrepancy found by AT staff.
• April 9, 1998 - Letter from DWQ to permittee noting Grade 1I WPCS classification.
• November 29, 1999 - Permit Renewal - This permit included an update to the treatment system description
on the supplement to the cover page. The effluent limitations were mainly the same with the exception that
the NH3-N weekly average limits were not included for some reason. Quarterly mercury monitoring was
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 6

also added to the permit in response to mercury issues in a number of streams in the Lumber River basin
and sludge monitoring condition was added.
• December 1, 2000 - Letter to ORC for Show Cause Hearing due to repeated violations.
• July 30, 2003 - Town was requesting funding through the Supplemental Grant Program with the Rural
Water Center to upgrade their chlorine disinfection system and to replace sewer connections. The request
notes that this would allow the town to connect a new industry to their system.
• August 12, 2003 - DWQ letter to the Town about new testing methods for mercury.
• October 8, 2003 - Special Order by Consent (SOC) request - The request as for 70,000 GPD in additional
flow.
• May 13, 2004 - SOC Modification - for further expansion of requested flow.
• October 25, 2004 - Permit Renewal - The permit corrected the effluent table to again add the NH3-N weekly
average limits (same as in the 1994 permit). Total Residual Chlorine limit of 17µg/L was added with an
effective date of May 1, 2006. The permit also added conditions for Mercury Re -opener and for the
development of an Engineering Alternative Analysis by May 29, 2005.
• December 9, 2005 - Notification of Show Cause Hearing for backup ORC.
• August 8, 2007 - Additional Information request for the Town's SOC request. This document indicates that
the Town was pursuing connection to the Red Springs WWTP.
• February 12, 2008 - DWQ letter to the Clean Water Trust Fund recommending funding for the Town of
Parkton for needed system repairs.
• December 14, 2009 - Permit Renewal - This renewal includes the addition of a 12 ng/L daily max limit for
mercury and an increase in mercury monitoring frequency to monthly. The Fact Sheet and Staff Report in
the permit documents indicate concerns with the facility's flow history and 1/1 issues and also note the town
has received some funding to address some issues as well as indicating the town is looking at the possibility
of connecting to the Red Springs system.
• March 7, 2013 - Permit Correction - This permit modification responded to the town's request for a
correction and changed instream temperature monitoring from daily to weekly.
• December 23, 2013 - Staff Report - The report noted the town had requested an ATC to conduct some
improvements including: construction of a new headworks system with spiral screen and grit removal,
precast concrete flow splitter box, precast concrete chlorine contact basin, dechlorination chemical feed
building, associated appurtenances. The ATC apparently also noted plans to replace a large number of
sewer services and rehabilitate a pump station. The region addressed ongoing concerns with flow at the
facility and mentioned recent issues with ammonia and toxicity.
• January 30, 2014 Authorization to Construct (ATC) - ATC was for modifications to the existing 0.20MGD
plant (no flow increase) that included: installation of a new automatic bar screen with manual bypass
screen, a new grit removal system, new influent splitter box for existing oxidation ditches; new 3,290 gallon
chlorine contact chamber with chlorination to operate in conjunction with existing chlorine contact
chamber; new liquid calcium thiosulfate feed system with all piping, controls, etc. There is no Engineer's
certification so it is unclear if any of these modification actually occurred.
• December 17, 2014 - Permit Renewal - The permittee asked for a number of permit changes: removal of
mercury monitoring - due to continued detection mercury monitoring was not removed but the limit was
removed and frequency changed from monthly to quarterly; removal of WET requirements - due to a
number of toxicity failures and issues with other potentially toxic parameters, no changes were made to
WET; removal of instream DO conductivity and temperature monitoring - this item was not addressed in
the permit documents but the monitoring was maintained; removal of sludge mercury monitoring - due to
continued detection this monitoring was maintained. No other major changed to the permit, but parameter
codes and eDMR language added.
• January 8, 2020 - Permit Renewal - In response to requests from the permittee, the Division reviewed data
from the permit cycle and determined that instream monitoring for DO, temperature and conductivity could
be removed from the permit. The monitoring requirements for mercury were also reviewed and changed to
a frequency of once per permit term but sludge monitoring requirements for mercury were maintained.
Due to continued occurrences of toxicity test failures, the town's request to remove WET requirements was
denied. The permit also updated language and map information.
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 7

• May 4, 2021 -Sewer Line Moratorium -The town's WWTP flow for 2020 was above the 80% threshold
(87.5) so the moratorium was instated based on 15A NCAC 2T .0118. An appropriate engineering
evaluation was required. There is no indication in Laserfiche of any response to the moratorium.
PROPOSED PERMIT CHANGES:
• Updated eDMR requirements to be consistent with final EPA rule.
• Added or updated regulatory citations throughout permit as needed, including changes to reflect recently
updated rule citations.
• Changed DO limit to daily minimum to be consistent with other permits.
• Added constituent parameters for the calculation and reporting of TN and to be reported separately in
eDMR.
• Ammonia limits reduced to those calculated in the WLA spreadsheet (toxicity no longer acceptable in
place of lower limits). The new limits will have a compliance schedule of two years and will be:
New Ammonia NHA) Limits
Season
Monthly Average
Weekly Average
m IL
m IL
Summer
2
6
Winter
4
12
• Permit map information updated including correction of the location coordinates for the outfall. These
coordinates have been verified by the regional office and updated in BIMS.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: July 23, 2024
Permit Scheduled Effective Date: November 1, 2024
STATE CONTACT:
If you have questions concerning the above or the attached documents, please contact Bradley Bennett at
[e-mail]. .
Town of Parkton WWTP Fact Sheet
NPDES Renewal 2024 — July 12, 2024
Page 8

`rlil
R6B'ESONIAN
AFFIDAVIT OF PUBLICATION
State of Florida, County of Orange, ss:
Yuade Moore, being first duly sworn, deposes and says: That (s)he
is a duly authorized signatory of Column Software, PBC, duly
authorized agent of The Robesonian, a daily newspaper of general
circulation, printed and published in Lumberton, Robeson County,
North Carolina, that the publication, a copy of which is attached
hereto, was published in the said newspaper on the following
PUBLICATION DATES:
Jul. 27, 2024
NOTICE ID: nu7yulaEjOZnBFMm5HtM
PUBLISHER ID: 01166904
NOTICE NAME: Permit NC0026921— Parkton WWTP
Publication Fee: $162.08
(signed) T,3APc,14L_
= P%YlP('�`//W� - PAMELABAEZ
VERIFICATION Notary Public - State of Florida
State of Florida �` a _ Commission # HH 186700
A
9> P C Expires on October 14, 2025
County of Orange i iF\°.o`
Subscribed in my presence and sworn to before me on this: 07/29/20.
�A�'
Notary Public
Notarized remotely online using communication technology via
Public Notice
North Carolina Environmental
Management Commission/
NPDES Unit
1617 Mail Service Center
Raleigh, NO 27699-1617
Notice of Intent to Issue NPDES
Wastewater Permit NCO026921
— Parkton WWTR
The North Carolina
Environmental Management
Commission proposes to issue
a NPDES wastewate r discharge
permit to the person(s) listed
below. Written comments
regarding the proposed permit
will be accepted until 30 days
after the publish date of this
notice. The Director of the NO
Division of Water Resources
(DWR) may hold a public
hearing should there be a
significant degree of public
interest. Please mail comments
and/or information requests
to DWR at the above address.
Interested persons may visit
the DWR at 512 N. Salisbury
Street, Raleigh, NO 27604
to review the information on
file. Additional information on
NPDES permits and this notice
may be found on our website:
hitps://deq.nc.gov/public-
notices-hearings ,or by calling
oof. (91 g) 707-0601. The Town of
Parkton [PO Box 55; Parkton,
NO 28371] has requested
renewal of NPDES permit
NCO026921 for the Parkton
WWTP, located in Robeson
County. This permitted facility
discharges treated wastewater
to Dunns Marsh, class C; Sw
waiters in the Lumber River
Basin. Some of the parameters
in the permit are water quality
limited. This discharge may
affect future allocations in
Dunns Marsh.
7/27 2024
Permit NCO026921 — Parkton WWTP - Page 1 of 1

Bennett, Bradley
From:
Bennett, Bradley
Sent:
Tuesday, September 17, 2024 10:30 AM
To:
[e-mail]; [e-mail]
Cc:
Town of Parkton
Subject:
Final NPDES Permit for Parkton WWTP - NCO026921
Attachments:
NC0026921_Final Permit and Covr Ltr signed_2024.pdf
Mayor Underwood and Mr. Penfield
Attached is the Final signed permit for renewal of the Town of Parkton's WWTP — NC0026921. This permit will
become effective on November 1, 2024. Until that time, please continue to abide by your existing permit. Please
make this permit available to all staff involved in implementing the NPDES permit and assure that the permit is
available at the WWTP facility.
Please respond to this email to verify that you received the attached permit and were able to open, view,
download and print the permit for your records.
Please contact me if you wish to be mailed a hard copy of the attached permit. If you have any questions, feel free
to contact me.
Bradley Bennett
Compliance and Expedited Permitting
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
email: brad ley. ben nettCa>deq.nc.gov
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, September 17, 2024 10:57 AM
To: Brantley, Mark; White, Hughie
Subject: Final Permit for Parkton WWTP - NCO026921
Hey Guys,
Just wanted to let you know that the Parkton WWTP permit (NC0026921) was signed yesterday, and I emailed it to
the Town today. The permit will become effective on November 1, 2024. The permit and Fact Sheet are available
in Laserfiche.
Thanks
W.
Bradley Bennett
Compliance and Expedited Permitting
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
email: brad ley. ben nettCaOdeq.nc.gov
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

Bennett, Bradley
From:
Bennett, Bradley
Sent:
Tuesday, September 17, 2024 10:59 AM
To:
ATForms.ATB
Cc:
Nicholson, Molly; Moore, Cindy
Subject:
Final Permit For Parkton WWTP - NCO026921
Just an update that this permit has been issued and will be effective November 1, 2024. The permit and Fact Sheet
are available in Laserfiche.
Thanks
L-I
Bradley Bennett
Compliance and Expedited Permitting
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
email: bradley.bennett(a>deq.nc.gov
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, July 23, 2024 11:48 AM
To: [e-mail]
Cc: Town of Parkton; [e-mail]
Subject: Draft Permit for Renewal of Town of Parkton WWTP - NCO026921
Attachments: NC0026921_Draft Permit and Cover Ltr_2024.pdf
Mayor Underwood,
Attached is the draft permit for renewal of the Town of Parkton's WWTP — NC0026921. This draft permit will go to
public notice in a local paper later this week. If you have any comments on the draft, you can direct them tome at
this email address.
Please respond to this email to verify that you received the draft permit and were able to access the
document to print, view and download the document for your use.
Thanks
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, July 23, 2024 11:54 AM
To: Talbott, Jeffrey
Subject: Draft Permit for Parkton WWTP - NCO026921
Attachments: NC0026921_Fact Sheet Blnder_20240712.pdf; NC0026921_Draft Permit and Cover Ltr_
2024.pdf
Hey Jeff,
Here is a draft permit and fact sheet for this facility. This one is going to notice this week. Let us know if you have
any comments.
Thanks
W.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, July 23, 2024 11:53 AM
To: ATForms.ATB
Cc: Moore, Cindy; Nicholson, Molly
Subject: Draft Permit for Parkton WWTP - NCO026921 - To Notice
Attachments: NC0026921_Fact Sheet Blnder_20240712.pdf; NC0026921_Draft Permit and Cover Ltr_
2024.pdf
Hey Guys,
You got an earlier draft on this one. It is going to notice later this week. Just wanted to give you a heads up.
An.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws
1

Bennett, Bradley
From:
Bennett, Bradley
Sent:
Tuesday, July 23, 2024 11:51 AM
To:
Brantley, Mark; White, Hughie
Subject:
Parkton Draft Permit To Notice - NCO026921
Attachments: NC0026921_Fact Sheet Blnder_20240712.pdf; NC0026921_Draft Permit and Cover Ltr_
2024.pdf
Hey Guys,
Just an update that the draft I forwarded earlier is going to notice this week. I just emailed the draft to the town.
Thanks
W.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws

Bennett, Bradley
From: Moore, Cindy
Sent: Tuesday, July 16, 2024 7:09 AM
To: Bennett, Bradley; ATForms.ATB
Cc: Nicholson, Molly
Subject: Re: Draft Permit for Parkton WWTP - NCO026921
yes, we agree to keep the tox
From: Bennett, Bradley <[e-mail]>
Sent: Monday, July 15, 2024 4:28 PM
To: Moore, Cindy <[e-mail]>; ATForms.ATB <[e-mail]>
Cc: Nicholson, Molly <[e-mail]>
Subject: RE: Draft Permit for Parkton WWTP - NCO026921
Hey Cindy,
Just wanted to check on your comment below. Since this one has had trouble with Tox, even though it is 100%
domestic, I felt they should maintain the WET requirements. Do you guys agree with that call?
M.
Bradley Bennett
Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: [e-mail]
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws
From: Moore, Cindy <[e-mail]>
Sent: Wednesday, July 10, 2024 7:31 AM
To: Bennett, Bradley <[e-mail]>; ATForms.ATB <[e-mail]>
Cc: Nicholson, Molly <[e-mail]>
Subject: RE: Draft Permit for Parkton WWTP - NCO026921
Hey All,
This is just an FYI. This facility is a purely domestic facility, but they continue to have problems with their chlorine
feed. Most of the failures in the past have been because of too much chlorine in the effluent.
Cindy
From: Bennett, Bradley <bradley. ben [e-mail]>
Sent: Tuesday, July 9, 2024 2:45 PM
To: ATForms.ATB <[e-mail]>
Cc: Nicholson, Molly <molIV. [e-mail]>; Moore, Cindy <[e-mail]>
Subject: Draft Permit for Parkton WWTP - NCO026921
Hey Guys,

Here is a draft permit for your review. The permit and Fact Sheet are attached. The application is in Laserfiche if
you need to see that. Take a look and let me know if you have any comments. This one will hopefully go to notice
on July 23'd
Thanks
::
Bradley Bennett
Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: brad Iey.ben nett(o)deg.nc.gov
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, July 23, 2024 11:53 AM
To: ATForms.ATB
Cc: Moore, Cindy; Nicholson, Molly
Subject: Draft Permit for Parkton WWTP - NCO026921 - To Notice
Attachments: NC0026921_Fact Sheet Blnder_20240712.pdf; NC0026921_Draft Permit and Cover Ltr_
2024.pdf
Hey Guys,
You got an earlier draft on this one. It is going to notice later this week. Just wanted to give you a heads up.
An.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws
1

Bennett, Bradley
From: Corporon, Joe
Sent: Wednesday, July 10, 2024 12:25 PM
To: Bennett, Bradley
Subject: RE: Draft Permit for Review - Parkton WWTP - NCO026921
BB — quick review - very comprehensive history. [Personally, I likely would not have included so much detail
rationalizing that it's already a matter of record.]
found only one word you should correct. DO is a minimum, not a MAX.
(See Fact Sheet Binder / PROPOSED PERMIT CHANGES - permit looks OK).
Very thorough.
=j rc
Joe R. Corporon, P. G. (he/him/his)
Central Office - Regional Office Contact (ROC) for MRO
NCDEQ/DWR/NPDES Permitting / Environmental Compliance
[e-mail]]
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From: Bennett, Bradley <[e-mail]>
Sent: Tuesday, July 9, 2024 2:56 PM
To: Corporon, Joe <[e-mail]>
Subject: Draft Permit for Review - Parkton WWTP - NCO026921
Hey Joe,
Here is another draft permit for your review. Please take a look and let me know if see any needed changes or have
questions. The files are linked below to a folder on my OneDrive that I gave you access to. Just click the link and it
should take you to the folder. Let me know if you have any trouble accessing these. I can email the files to you if
you do. I would like to try and notice this one the week of July 23rd if possible.
M NCO026921 - Parkton WWTP
Thanks
::,
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: bradley.bennett(Neuc.pov

Bennett, Bradley
From: White, Hughie
Sent: Wednesday, July 10, 2024 8:38 AM
To: Bennett, Bradley; Brantley, Mark; Turlington, Chad
Subject: RE: Draft Permit for Parkton WWTP - NCO026921
Hey Bradley,
Yes, the new corrected coordinates that you have listed for Parkton are the correct locations.
Hughie
From: Bennett, Bradley <[e-mail]>
Sent: Tuesday, July 9, 2024 2:36 PM
To: Brantley, Mark <[e-mail]>; Turlington, Chad <[e-mail]>; White, Hughie
<[e-mail]>
Subject: Draft Permit for Parkton WWTP - NCO026921
Hey Guys,
As I mentioned in the email this morning, I have the draft ready for your review. The draft permit and Fact Sheet are
attached. The renewal application is in Laserfiche if you need it. In addition to the issues with the ammonia limit
changes I also wanted to draw your attention to the facility and outfall locations. At the bottom of page 4 in the
Fact Sheet I have noted what I think should be the correct location coordinates for the facility and the
outfall. These look to have been wrong for a while now in BIMS. Could you look at these and verify them or make
any needed changes and let me know.
Thanks for your help!
W.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.

Bennett, Bradley
From:
Sent:
To:
Subject:
Hey Guys,
Hope you are doing well.
Bennett, Bradley
Tuesday, July 9, 2024 8:01 AM
Brantley, Mark; White, Hughie; Turlington, Chad
Parkton WWTP Renewal - NCO026921
just wanted to give you a heads up about a couple of things on this renewal. First of all, I should have the draft
ready to send for your review later today hopefully. One key change in the permit will be Ammonia limits. Back in
1990 it looks like the Town accepted toxicity testing in order to maintain higher Ammonia limits. But in 2016 our
guidance on ammonia changed due to some EPA comments on permit limits. We can no longer give narrative
standards like toxin place of an actual numeric limit. That means their ammonia number will drop significantly to
2/6 in summer and 4/12 in Winter. If these limits had been in place in the last permit cycle their violations would
have increased from 10 to 33! So, they will have some work to do on this. We will give them a compliance
schedule for the new limits. Even though we are implementing the lower ammonia limits, the toxicity
requirements will stay in the permit because they have failed 3 of the last 7 WET tests.
Also wanted to let you know that the town respond to correct their contacts list we provided to them, and one thing
they indicated was that their ORC (Tim Lyde) was no longer with the Town and their backup ORC (Benton Rogers)
was taking over. I'm not sure if they have sent in the proper forms for this so I'll respond to send them to the
Operator Cert group on this. When I started the renewal review, I sent an email to the Town and the ORC. Mr. Lyde
called me back and gave me a heads up that he wasn't going to be the ORC much longer. He didn't say why. Just
wanted to make sure you guys knew about the change in case you wanted to touch base with them about it.
::
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, July 9, 2024 11:10 AM
To: Town of Parkton
Subject: RE: [External] RE: Permit Renewal for Parkton WWTP - NCO026921
Attachments: NCDWR Electronic Signature Agreement Version 1.docx; NCDWR Electronic Signature
Agreement Version 1.pdf
Hi Robin,
Thanks for the info on the contacts. I can make some of these changes. There are a few that I will have to send you
to other groups to make though, sorry about that.
For the ORC change, if you haven't already, you need to contact the Operator Certification Program to get this
updated. They have a form you will need to fill out. You can get the form at this link www.deq.nc.gov/water-
resources/ows/ww-operator-certification/20240216-orc-designation-formradf/download?attachment You
should then send it to them at CertAdmin(a)deq.nc.gov. If you have questions about the ORC change you can
contact the Program Supervisor —Jeff Talbott at: Jeff rey.Talbott(a deq.nc.gov.
The second area isn't on the previous form but I realized that the only people you have currently set up to sign your
eDMR submittals electronically are Mayor Underwood and Mr. Lyde. So, you will need to send in the
documentation to get electronic signature agreement setup for other staff, possibly your new ORC. I have
attached this form in word and pdf versions. It has instructions, including how to submit the form and contacts on
completing the process if you have questions.
Sorry for the extra work on this.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws
From: Town of Parkton <[e-mail]>
Sent: Monday, July 8, 2024 9:36 AM
To: Bennett, Bradley <[e-mail]>
Subject: [External] RE: Permit Renewal for Parkton WWTP - NCO026921
You don't often get email from [e-mail]. Learn why this is important
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Please see the attached for our changes — Mr. Lyde is no longer with the Town, Mr. Benton Rogers is now our ORC
Thank you,
Robin
Robin Fitch

Finance Officer/Town Clerk
Town of Parkton
28 W David Parnell Street
PO Box 55 Parkton, NC 28371-1672
910-858-3360 — Office 910-858-9808 — Fax
Website: www.townofparkton.org
Email: [e-mail]
From: Bennett, Bradley <bradley. ben [e-mail]>
Sent: Monday, June 24, 2024 12:19 PM
To: [e-mail]
Cc: Town of Parkton <robin.fitch @townofparkton.org>
Subject: Permit Renewal for Parkton WWTP - NCO026921
Mr. Lyde,
am a permit writer in the Division of Water Resources (DWR) and I am working on the permit renewal for the Town
of Parkton's WWTP — NC0026921. I am touching base so you will have my contact information during the process
and also to pass along some information and request your review of contact information that we have in our
permitting database. See the items below.
Contact Information
I have attached a pdf file with information on the contacts that we currently have in our database for the Parkton
permit. Please review these and let us know if there are any changes, additions, or deletions that we need to make
in this information.
Electronic Submittal of Permit Information
In order to provide more convenience, control, and security to our permittees and assist them in processing their
transactions, The Division of Water Resources is currently transitioning towards electronic correspondence. This
will hopefully provide more efficient service to our permittees and other partners and will allow us to more
effectively process and track documents. We are writing to ask you for your approval of the transmittal of
documents related to your permitting and related activities with the Division in an electronic format. Documents
will be emailed to the appropriate contact person(s) in your organization in a PDF format.
Please respond to me through email with verification that transmittal of your documents in an electronic
manner is acceptable to you.
If you have any questions, please feel free to contact me. I am a part time employee and I'm usually available
Monday through Wednesday.
Bradley Bennett
Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: bradley.ben nett&deg.nc.gov
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws

Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.

North Carolina Dqartment of Environmental Quality
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411 24c Page 2

Bennett, Bradley
From: Talbott, Jeffrey
Sent: Monday, July 8, 2024 3:04 PM
To: Bennett, Bradley
Subject: RE: ORC Change Question
Hi Bradley —they need to fill out the appropriate form and send it in to myteam at CertAdmin(a)deq.nc.gov.
The form can be found here:
www.deq. nc.gov/water-resou rces/pws/ww-operator-certification/20240216-orc-designation-
formpdf/download?attachment
Happy to field any questions they may have about the process. Thanks for reaching out!
Jeff Talbott
Supervisor, NC Operator Certification Program
Division of Water Resources
Department of Environmental Quality
Phone: [phone]
Email: Jeff rey.TalbottPdeq.nc.gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Bennett, Bradley <[e-mail]>
Sent: Monday, July 8, 2024 3:02 PM
To: Talbott, Jeffrey <[e-mail]>
Subject: ORC Change Question
Hey Jeff,
am working on a permit renewal for the Town of Parkton WWTP (NC0026921). I sent them our NPDES Permit
Contacts for them to update any changes they have had for their facility. One of the changes they marked was that
their ORC was no longer with the town and their backup was their new ORC. I think this is a recent change and I'm
not sure if they have sent you the proper information for this change. Is there someone on your staff that I should
have them touch base with about what they need to do to make their needed ORC changes or is this something the
regional office would work with them on?
Thanks for your help.
::
Bradley Bennett

Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: brad ley. ben nett ,deq.nc.gov
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.

Bennett, Bradley
From: Bennett, Bradley
Sent: Tuesday, June 25, 2024 9:27 AM
To: White, Hughie
Subject: FW: Permit Renewals
Sorry, probably should have copied you on these emails also. See below emails and let me know if you have any
thoughts on these.
Thanks
WN.
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: [e-mail]
Email correspondence to and from this address may be subject to public records laws
From: Bennett, Bradley
Sent: Monday, June 24, 2024 10:42 AM
To: Brantley, Mark <[e-mail]>
Subject: RE: Permit Renewals
Hey Mark,
Forgot one thing. We still haven't received a permit application for renewal from Rowland yet. We have staff that
are checking on the app so hopefully we will get it soon.
L:3=
Bradley Bennett
Compliance and Expedited Permitting
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Email: bradley.ben nett(o)deg.nc.gov
Email correspondence to and from this address may be subject to public records laws
From: Bennett, Bradley
Sent: Monday, June 24, 2024 10:40 AM
To: Brantley, Mark <[e-mail]>
Subject: Permit Renewals
Hey Mark,
Hope you are doing okay. I just wanted to send a quick message to let you know the next permit renewals I am
working on are all in the FRO and are listed below. I'm starting now with Parkton. Let me know if there are specific

issues you want to discuss on any of these or if there are things you think need to be addressed in the renewal
process.
NCOO26921 — Parkton WWTP
NCOO2712O — Maxton WWTP
NCOO69612 — Rowland WWTP
Thanks
::
Bradley Bennett
Compliance and Expedited Permitting Phone: [phone]
NC Division of Water Resources
1617 Mail Service Center Email: [e-mail]
Raleigh, NC 27699-1617
Email correspondence to and from this address may be subject to public records laws

NH3/TRC WLA Calculations
Facility: Parkton WTP
Permit No. NC0026921
Prepared By: Bradley Bennett
Enter Design Flow (MGD): 0.2 <= Permitted Flow if Different from Design
Enter s7Q10 (cfs): 0
Enter w7Q10 (cfs): 0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
Upstream Bkgd (ug/1)
IWC (%)
Allowable Conc. (ug/1)
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
Design Permitted
Design Permitted
0
s7Q10 (CFS)
0
0.2
DESIGN FLOW (MGD)
0.2
0.31
DESIGN FLOW (CFS)
0.31
17.0
STREAM STD (MG/L)
1.0
0
Upstream Bkgd (mg/1)
0.22
100.00
IWC (%)
100.00
17
Allowable Conc. (mg/1)
1.0
< 1 MGD Policy Applies
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Design Permitted
Design Permitted
w7Q10 (CFS)
0
200/100mi DESIGN FLOW (MGD)
0.2
DESIGN FLOW (CFS)
0.31
STREAM STD (MG/L)
1.8
1.00 Upstream Bkgd (mg/I)
0.22
IWC (%)
100.00
Allowable Conc. (mg/1)
1.8
< 1 MGD Policy Applies
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
* By Policy dischargers < 1 MGD get limits no lower than 2 (s) & 4 (w) due to BAT
* From 2B .0404(c) - Winter Limits can be no less stringent than 2 times the summer limits
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

Whole Effluent Toxicity Testing and Self Monitoring Summary
OWASA/ Mason Farm WWTP
NCO025241/001
County: Orange R
Ceri7dPF
Begin:
8/1/2020
chr lim: 90%
+ NonComp: Single
J
F M
A M
2020
-
Pass(s) -
- Pass(s)
2021
-
Pass -
- Pass
2022
-
Pass
(S) Pass (S) -
- >100 (P) Pass (S) Pass
2023
-
Pass
Pass -
- Pass Pass
2024
-
Pass
Pass -
- -
Oxford WWTP
NCO025054/001
County: Granville R
Ceri7dPF
Begin:
4/1/2021
chr lim: 90%
NonComp: Single
J
F M
A M
2020
-
Pass -
- Pass>100(P)
2021
-
Pass -
- Pass >100 (P)
2022
-
Pass -
- Pass
2023
-
Pass -
- Pass
2024
-
Pass -
- Pass
Parkton WWTP
NCO026921/001
County: Robeson R
Ceri7dPF
Begin:
2/1/2015
Chr Monit: 90%
NonComp: Single
J
F M
A M
2020
Pass
- -
Pass -
2021
Pass
- -
Pass -
2022
Pass
- -
NR Pass -
2023
Pass
- -
Pass -
2024
Pass
- -
Pass -
Pasquotank Cty Reverse Osmosis WTP
NCO088480/001
County: Pasquotank R
Mysd7dPF
Begin:
7/1/2020
Chr Lim: 6% @ 2 MG NonComp:
J
F M
A M
2020
-
Pass -
- Pass
2021
-
INVALID
Pass
- Pass
2022
-
Pass -
- Pass
2023
-
Pass -
- Pass
2024
-
Pass -
- -
Pasquotank WTP
NCO043583/001
County: Pasquotank R
Ceri7dPF
Begin:
4/1/2018
Chr Monit: 90%
NonComp:
J
F M
A M
2020
-
- Pass
- -
2021
-
- Pass
- -
2022
-
- Pass
- -
2023
-
- Pass
- -
2024
-
- INVALID
Pass -
egion:
FRO
Basin: CPF06
Feb May Aug Nov
7Q10:
1.0
PF: 14.5 IWC: 95
Freq: Q
J
J
A
S
O
Pass
-
-
Pass (S) Pass (S)
-
-
-
-
Pass Pass
-
-
-
-
>100 Pass Pass
-
-
egion:
RRO
Basin: TAR01
Feb May Aug Nov
7Q10:
0.05
PF: 3.5 IWC: 98.5
Freq: Q
J
J
A
S
O
Pass
Pass
-
-
Pass >100(P)
-
-
Pass
egion:
FRO
Basin: LUM53
Jan Apr Jul Oct
7Q10:
0.0
PF: 0.2 IWC: 100
Freq: Q
J
J
A
S
O
-
Pass
-
-
Pass
-
Pass
-
-
Pass NR
-
Fail
-
-
Fail
-
Fail
-
-
Pass
egion:
WARO
Basin: PAS52
Feb May Aug Nov
7Q10:
Tidal
PF: 2 IWC: 6
Freq: Q
J
J
A
S
O
Pass
-
Pass
>6.0
Pass
egion:
WARO
Basin: PAS50
Mar Jun Sep Dec
7Q10:
PF: IWC:
Freq: Q
J
J
A
S
O
Pass
-
-
Pass
-
Pass
-
-
Pass
-
Fail
-
-
Pass
-
Pass
-
-
Pass
-
SOC_JOC:
N
Pass
Pass >100 (P)
Pass Pass
Pass Pass
SOC_JOC:
N
Pass
Pass
Pass
INVALID
SOC JOC:
N
>100
SOC_JOC:
N
INVALID
Pass
Pass
Pass
SOC_JOC:
N
C
C
>100 (P) Pass
D
<45
D
Pass
D
Pass
Pass
Pass
Pass
Leizend: P= Fathead minnow (Pimohales Dromelas). H=No Flow (facilitv is active), s = Split test between Certified Labs
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